Revert "Adds a GrGLPathRendering class that wraps the NV_path_rendering"

This reverts commit 5672da0fa54f31c9727568e9dd5fe82c6e1585bc.

This appears to be blocking the Skia roll by causing failures in the blink layout tests on the canvas-lost-gpu-context.html test.

The bisect for this can be seen at:

https://codereview.chromium.org/449473002/

Original issue's description:
> Adds a GrGLPathRendering class that wraps the NV_path_rendering
> extension and manages its various API versions. It also provides
> backup implementations when certain NVpr methods from later API
> versions are not present on the current system.
>
> Committed: https://skia.googlesource.com/skia/+/5672da0fa54f31c9727568e9dd5fe82c6e1585bc

1 files changed, 2 insertions, 1 deletions

diff --git a/src/gpu/gl/GrGLPath.h b/src/gpu/gl/GrGLPath.h
index 935a2e24ad..4831b7250f 100644
--- a/src/gpu/gl/GrGLPath.h
+++ b/src/gpu/gl/GrGLPath.h
@@ -13,6 +13,7 @@
 #include "gl/GrGLFunctions.h"
 
 class GrGpuGL;
+struct GrGLInterface;
 
 /**
  * Currently this represents a path built using GL_NV_path_rendering. If we
@@ -22,7 +23,7 @@ class GrGpuGL;
 
 class GrGLPath : public GrPath {
 public:
-    static void InitPathObject(GrGpuGL*,
+    static void InitPathObject(const GrGLInterface*,
                                GrGLuint pathID,
                                const SkPath&,
                                const SkStrokeRec&);